Korg Pitchblack X Pro

The Korg Pitchblack X Pro is a chromatic tuner built for the rack rather than the pedalboard. Korg describes it as "our new flagship rack-mounted tuner," and it sits at the top of the Pitchblack X line, which otherwise consists of pedal-format tuners¹. Like the rest of the series it carries a built-in Ultra Buffer, a circuit Korg says keeps your tone intact in bypass mode when you are running long cables or a large effects setup¹.

For a player, the practical difference is integration. Where a pedal tuner lives on the floor, the Pitchblack X Pro is designed to drop into a rack, with input and output jacks on both the front and rear panels so it can be wired into a fixed rig from behind while staying reachable from the front¹.

Display modes, jacks and Cable Check

The tuner offers four meter display modes: Regular, Strobe, Half Strobe, and Focus¹. Regular is the familiar needle-style meter; Strobe is the mode Korg specifies for the tightest accuracy, at ±0.1 cents¹. The other Pitchblack X models use a similar set of modes, with Mirror in place of Focus on the Pitchblack X and Pitchblack X mini³⁵.

The jack layout is what sets the Pro apart from its pedal siblings¹⁴:

The Cable Check jack is a diagnostic feature. By connecting a standard cable into the INPUT 1 and CABLE CHECK jacks, the unit checks the cable, so a suspect lead can be tested before it causes a problem on stage¹. The display uses cyan, green, and blue LEDs⁴.

The Ultra Buffer

The Ultra Buffer is the series' signature feature. Korg says it "enhances the sound quality in bypass mode, so that you can still maintain audio quality even when using" long cables or complex effects boards¹. The Pitchblack X Pro can switch between the Ultra Buffer and true bypass⁷, so a player who prefers a fully passive signal path when the tuner is inactive can have it, while someone with a long cable run can leave the buffer engaged.

The pedal-sized Pitchblack X offers the same switchable arrangement⁷⁵, and the Pitchblack X mini carries the Ultra Buffer as well⁵. For more on buffers generally, see buffer pedals.

Where it sits in the Pitchblack X line

The Pitchblack X series covers four models: the Pitchblack X pedal, the Pitchblack XS, the Pitchblack X Pro, and the Pitchblack X mini⁸. The mini is the smallest tuner in the series⁵. There is also a Pitchblack X CR/BL, a cosmetic variant of the Pitchblack X in Cream and Blue finishes whose specifications Korg says are exactly the same as the standard model.

All four share the ±0.1 cent Strobe-mode accuracy figure that Korg publishes across the line¹⁵. The Pitchblack X pedal adds a "just-right tuning" display in which triangular LEDs on both sides blink when the tuning is correct, and it is housed in a robust aluminum case with a scratch-resistant coating⁷. Reviewing that pedal, Guitar World listed its accuracy as +/- 0.1 cent and noted its side-mounted jacks and top-mounted power⁶. On the mini, MusicRadar's editors observed that "there are actually more color segments on the mini version than on the full-sized one"¹⁰.

The Pro's place in the line is straightforward: same tuning engine and buffer concept as the pedals, packaged for a rack, with the dual front and rear jack sets and the Cable Check function as its distinguishing features¹⁴.

Questions